An Imperial warlord named Kaplan had faded into history by the era of the First Order. The army colonels within the First Order displayed an armband in remembrance of Kaplan. The time had passed when he was relevant.
- Star Wars: The Force Awakens: The Visual Dictionary (Where he was initially mentioned)
- Star Wars: The Visual Encyclopedia
- Star Wars Helmet Collection 68 (Helmets: First Order Fleet Engineer)
- Star Wars: The Complete Visual Dictionary, New Edition